Front gun-sight.



A. J. EVANS.

FRONT GUN SIGHT.

APPLIOATION FILED In 1, 1913.

1,087,747. Patented Feb. 17, 1914,

WITNESSES I v mvmron jaw 4 l free! 1 FZJa/ns J1 BY ATTORNEYS ALFRED J'.EVANS, OF MOSIER, OREGON.

FRONT GUN-SIGHT.

Specification of Letters Patent.

Patented Feb. 1'7, 1914.

Application filed May 1, 1913. Serial No. 764,816.

To all whom, it may concern:

Be it known that I, ALFRED J. EVANS, a citizen of the United States, anda resident of Mosier, in the county of WVasco and State of Oregon, haveinvented an Improvement in Front Gun-Sights, of which the following is aspecification.

The purpose of this sight is to secure greater accuracy in elevation andline in target and game shooting. It is of the type of leaf or blocksights having a notch or vertical slot in the center.

The invention is embodied in the peculiarities of construction andarrangement of parts as hereinafter described, and illustrated in theaccompanying drawing, in which Figure 1 is a perspective view showing myimproved sight applied to the muzzle end of a rifle barrel. Fig. 2 is aperspective view of the sightdetached. Figs. 3, 4 and 5 are perspectiveviewsof modifications.

The sight may be attached to a rifle or musket barrel in the usual orany preferred manner. As shown in Figs. 1 and 2, the sight 1 has anarrow central vertical slot 2, and its front side is provided with arecess 3, while the top 4.- is inclined forward at a small angle.

The slot 2 serves to guide the sight in line with the object aimed at,and, in practice, it is deep enough to extend slightly below the bottomof the rear sight, as related to the axis of the barrel, so that in useor in looking with an ordinary rear sight, the slot 2 will fall on the 0line of the rear sight. The slot is made as narrow and the edges of thesame as thin as practicable, which latter result is effected by theslope of the side walls of the front recess 3, thesame converging to theslot, as shown in Fig. 2. In practice, the inclined sides of the recessmay be ground or filed to form very thin edges for the slot.

The vertical back andflat inclined top 4- 0f the sight form an obtuseangle, as shown in Fig. 2, and thus a horizontal line is formed, savewhere interrupted by the slot. This horizontal line is the guide toelevation, since the object aimed at is first sighted over it and thenbrought into alinement with the slot. In brief, these two features of.the slot enable the gun to be sighted quickly. It will be noted that theforward inchnation or angle of the top 4 of the sight prevents .thesight havin refraction to the eye. It will be further seen that theblock form of the sight gives it great strength and adapts it to resistrough usage without injury to the sharply beveled edges of the slot.

In the modifications shown in Fig. 3, the recess 3 is rectangular inform; and in Fig. 4, the side walls 3 are curved inwardly, instead ofbeing straight or fiat as in Fig. 2.

In all the forms of the invention, the floor of the recess in the rearside is flush or coincident with the bottom of the slot.

In practice, when the sight is used on military and sporting guns, thesurface next to the eye should be finely matted or black.

It will be seen that the sight permits an unobstructed vision of thebulls-eye or target, and, in raisin the gun, the horizontal line of thetop of tie sight quickly indicates the required elevation, while thevertical slot quickly directs the vision in line with the object. p

In practice, the edges of the slot may be provided with some metalhaving a sharply defined color contrasting with the body of the sight,and the said edges will be preferably rounded or convex, as shown inFig. 5, since that form gives a better light reflection. I propose alsoto apply a contrasting color to the top edge of the slot, for the samepurpose.

The sight is best adapted for use with a rear sight having a flat top,so that when the two sights are alined, the top of the front sight andthe top of the rear sight will be inthe same horizontal plane.

.I claim 1. The improved front gun sight constructed in block form andhaving a deep central vertical slot in the rear side, the same being ofuniform width from top to bottom, a recess in the front side whose flooris at and coincident with the bottom of the slot, as described.

2. The improved front gun-sight, consisting of a block having a centralvertical slot in its rear side, which slot extends from top to base, anda recess'in the front side of the block whose walls are flat and set atan angle to each other and thus converge to the edges of the slot, asdescribed.

ALFRED J. EVANS.

Witnesses:

' JAB. E. Com,

H. G. Kmees.

